Tired of limited 12V monitors and unreliable connections? This advanced tool redefines the standard with 6V/12V/24V compatibility, 4-battery tracking, and Bluetooth 5.3 in a rugged, IP67 design. Stay fully aware and protected across all your vehicles, from classic cars to heavy-duty rigs.

Don't let car battery failure surprise you during your travels. This tool provides quick, accurate testing, eliminating the guesswork and ensuring you always know your battery's condition.

Features safety mechanisms like reverse polarity, short-circuit protection and IP67 Waterproof, and is known for its durability and compliance with industry standards, all contributing to its safety and reliability.

Make car repairs efficient and hassle-free with this compact, portable tool - perfect for any space.

Concerned your battery isn’t charging properly? The charging test checks if your charging system is working efficiently, ensuring your battery gets charged while the engine runs. It alerts you to issues with the alternator or charging system, so you can fix them before your battery runs out of power.

Worried about your car not starting after long parking or in cold weather? The cranking test checks your battery’s ability to start the engine, simulating real startup conditions. It identifies weak battery power in advance, so you can replace or recharge the battery before it fails, preventing unexpected breakdowns.

Struggling to monitor multiple batteries? Track up to 4 batteries at once, perfect for managing a fleet. Get real-time alerts for low power, voltage drops, or faults. Early detection allows you to address issues before breakdowns, keeping your vehicles in top condition and minimizing downtime.

Is the Bluetooth connection stable? What’s the effective range?

Yes, stable with Bluetooth 5.3 for up to 10m (33ft). For optimal signal, install it in a location minimally obstructed by thick metal.

How accurate are the readings?

Professionally before leaving the factory and utilizes high-precision sensors, providing voltage readings with an accuracy of ±0.1V. Ensure terminals are clean and tight for best results.

Will it work on both old motorcycle (6V) and truck (24V)?

Yes, this is exactly where the BM300PRO excels! Whether it’s for a classic motorcycle (6V), a regular car (12V), or trucks, RVs, and marine equipment (24V), one monitor works for all your vehicles.

Do I need to register with an email? How is my privacy protected?

No sign-up required to start. Create an account only to save your history. Your data is encrypted and never shared.

Is it complicated to install? Do I need professional tools or wiring?

No. Simple clamp-on to battery +/- terminals. The ultra-low 1.0mA draw is safer for long-term use than common 2mA monitors.

Product description

BM300 Pro Battery Monitor 6V/12V/24V

Charging System Test - Ensure Proper Charging

Charging System Test - Ensure Proper Charging

Cranking System Test - Prevent Startup Failures

Cranking System Test - Prevent Startup Failures

Multi-Device Monitoring & Smart Alarm

Multi-Device Monitoring & Smart Alarm

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